Use the Half-Angle Formulas to Determine the Exact Value of the Given

question 46

Multiple Choice

Use the half-angle formulas to determine the exact value of the given trigonometric expression.

---

Definitions:

Roundworms

A phylum of worms known as Nematoda, characterized by their elongated, cylindrical, and unsegmented bodies.

Pseudocoelom

Body cavity lying between the digestive tract and body wall that is incompletely lined by mesoderm.

Tube-Within-a-Tube

A design characteristic of the body plans of many animals, where the outer tube represents the body wall, and the inner tube represents the alimentary canal or gut.

Flukes

Parasitic flatworms that infect the liver, lungs, and other organs of their hosts, with life cycles involving one or more intermediate hosts.